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PSA: Every Mondial Owner Needs To Buy This:

Discussion in 'Mondial' started by ronfrohock, May 22, 2020.

  1. ronfrohock

    ronfrohock F1 Rookie
    Rossa Subscribed Owner

    Aug 16, 2004
    3,297
    MA
    Full Name:
    Ron Frohock
    A BMW mechanic recently told me about this stuff. I purchased a bottle and over a week or so, applied it to the gasket at the top of the windscreen that was dried out and hard.
    This product softened the gasket and now it is pliable and restored.

    Clean the gasket first then apply liberally, letting the liquid sink in overnight. Apply numerous times until the gasket has been restored. I ended up applying this to the other gaskets on my car as well.

    Might event help to keep those pesky B-Pillars soft as well. ;)

    Be well.
    - Ron Frohock



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  3. JLF

    JLF Formula 3
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    Sep 8, 2009
    1,243
    #2 JLF, May 22, 2020
    Last edited: May 22, 2020
    I did that a year or so ago. Turned my whitish windshield seal a cracked grayish to a soft black again. It’s a great product and works well on outer rubber exposed to the elements. I have been using it for a few years on my cars.....BUT!!! I used it on my Cayenne door seals and within a week or so I kept hearing this loud squeaking/popping as the car went over bumps. Took me awhile to realize the door seals were sticking together because of this stuff and no longer sliding on each other. Just FYI.
     
  4. energy88

    energy88 F1 World Champ
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    Jan 21, 2012
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    Fredericksburg, VA & Sarasota, FL
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    John
    You guys may want to also consider this from Honda. Have been using it for 16 years on my S2000 without the sticking and whitening complaints Jerry has. It's a bit more expensive than Ron's recommendation, but IMHO does do a good job of rejuvenating rubber long term.

    Would be interesting to learn about other alternatives available. My next project is saving the rubber on a 36-year old car.

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  5. JLF

    JLF Formula 3
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    Sep 8, 2009
    1,243
    Just to clarify energy it didn’t make any of my seals white. They were a whitish/gray and it corrected that.


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  6. Cadillacbart

    Cadillacbart Formula Junior

    Nov 26, 2013
    436
    Denver, CO
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    John


    Absolutely. Been using this for years after the folks over at the Porsche forums turned me onto it. Great product and a great applicator bottle.
     
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  8. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    20,727
    socal
    Sounds like cool stuff! Does it make the rubber sort of swell and can it close up the very small micro cracks in aging rubber often seen around an old windscreen?
     
  9. M. Brandon Motorcars

    Sponsor

    Sep 4, 2007
    1,493
    Houston, TX
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    Michael Foertsch
    I've used both gummi pflege and Shin-Etsu for years on various cars. Great stuff.
     
  10. JLF

    JLF Formula 3
    Silver Subscribed

    Sep 8, 2009
    1,243
    Yes, it seemed to fix most of that on my windshield seal.
     
  11. Cadillacbart

    Cadillacbart Formula Junior

    Nov 26, 2013
    436
    Denver, CO
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    John
    I have found it to be terrific for sponge rubber like the header seal and door seals.
     
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  13. ronfrohock

    ronfrohock F1 Rookie
    Rossa Subscribed Owner

    Aug 16, 2004
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    Full Name:
    Ron Frohock
  14. ronfrohock

    ronfrohock F1 Rookie
    Rossa Subscribed Owner

    Aug 16, 2004
    3,297
    MA
    Full Name:
    Ron Frohock
    ONSilver and ATLdoghouse like this.

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